Being maintainable is a positive from my point of view. Rather than having to replace blades, I can just sharpen it using very little in the way of consumables (a 50g jar of paste costs $10 and will last years).

Of course, it has a cost in time, but the straight razor itself can be faster than other razors because the blade is longer and it doesn't clog. I'm not sure if it's a net win, but I'm sure it's close.

You only need to sharpen straight razors once every 3 to 6 months. You don't necessarily need your own stone. I pay a friend to do it for a few bucks. Takes him 5-10mins. The money he invest on his wetstones has been paid back at this point.

To me straight razors represent community, whereas cartridge/disposables represent isolation, loneliness and obviously disposability. The people who are too afraid to use a straight razor, have to go to a barber to experience it. That's fantastic as it creates more social elements to this routine aspect of life.

What paste are you using?

Venev 0.5 micron.

I 100% agree. My daily routine does not need nicks, extra concentration or time tacked onto the end. Just need a quick clean shave and out the door.